| Re: safe sailing
[Re: HMurphey]
#208631 04/16/10 09:49 AM 04/16/10 09:49 AM |
Joined: Nov 2005 Posts: 807 Hillsborough, NC USA Isotope235
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Posts: 807 Hillsborough, NC USA | What tack is the windward spinnacker boat on????
The spinnacker indicates a port tack ..... but the boom is on Starboard tack ........?????
The leaward boat is definately on port tack ......
Eric ..... help????
What tack is a boat on when sailing downwind "wing and wing" mode .... what is the major determining factor .... the mainsail/boom????? One of the most enlightening sections of the rulebook is the "Definitions". It's only 3 pages long and at the end of the rulebook. I recommend it as a good read. In particular: Tack, Starboard or Port A boat is on the tack, starboard or port, corresponding to her windward side.
Leeward and Windward A boat's leeward side is the side that is or, when she is head to wind, was away from the wind. However, when sailing by the lee or directly downwind, her leeward side is the side on which her mainsail lies. The other side is her windward side... Reconstructing an incident from photographs can be problematic, as angle-of-view and foreshortening create perspective problems. From this single picture, it looks to me like: - Judging by the wake of the boat, and the position of the crew and sails, I would surmise that shortly before the picture was taken, the J80 (the spinnaker boat) (A) was sailing hot downwind on starboard tack. The boat sailing upwind (B) was on a beat to windward on port tack.
- Just before the picture was taken, A turned downwind, and moved (I don't want to use the term "gybed" here) her spinnaker to the port side. Why she did so is a matter of pure speculation. Perhaps she wanted to cross boat B, or perhaps she is heading for the motor yacht at the left edge of the photograph (it might be a finish mark although it appears to be under way).
- At the instant shown, A is sailing by the lee. Note that one of the crew is holding the boom forward to keep it from gybing. That keeps A on starboard tack thus preserving her right-of-way. I would guess that he will let the boom go after the boats cross.
- Note that both boats have a crewmember in a good position to watch the other. A has someone on the leeward side (probably trimming the spinsheet) and B's mastman (likely the tactician) appears to be calling instructions to the driver.
- From the relative sizes of the people on the boats, I'd guess there's several boatlengths separation and A will cross easily.
- All in all, I think both boats are aware of each other, have assessed the situation in advance, and are well under control. This looks like a safe crossing to me.
I hope that helps, Eric | | | Re: safe sailing
[Re: Isotope235]
#208633 04/16/10 09:54 AM 04/16/10 09:54 AM |
Joined: Sep 2002 Posts: 3,224 Roanoke Island ,N.C. Team_Cat_Fever
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Posts: 3,224 Roanoke Island ,N.C. | Not that we go dead downwind much but how would that be interpreted? If a protest committee saw a pic of a boat with it's boom hanging over the port side, even if it was by the lee, I'd think they'd have a hard time saying it wasn't on starboard.
"I said, now, I said ,pay attention boy!"
The cure for anything is salt water - sweat, tears, or the sea Isak Dinesen If a man is to be obsessed by something.... I suppose a boat is as good as anything... perhaps a bit better than most. E. B. White
| | | Re: safe sailing
[Re: mbounds]
#208639 04/16/10 10:11 AM 04/16/10 10:11 AM |
Joined: Nov 2005 Posts: 807 Hillsborough, NC USA Isotope235
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Posts: 807 Hillsborough, NC USA | However, downwind boat is in the middle of a jibe which would make him the GW boat. Not quite correct. There is a rule called "WHILE TACKING" (13), but not one called "WHILE GYBING". From the perspective of the rules, gybing occurs when your mainsail crosses the centerline of the boat and is considered pretty much an instantaneous event. The downwind boat shown appears to be changing course (see rule 16) but is still on starboard tack and is still the right-of-way boat. Regards, Eric | | | Re: safe sailing
[Re: pgp]
#208656 04/16/10 10:25 AM 04/16/10 10:25 AM |
Joined: Nov 2005 Posts: 807 Hillsborough, NC USA Isotope235
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Posts: 807 Hillsborough, NC USA | In the future, I will not participate in regattas where non spin boats are on the same course with spin boats. I'm really sorry to hear that and I hope you'll reconsider. I enjoy sailing both one-design and in mixed fleets and have no problem sharing a racecourse with disparate boats (even mixing mono and multihulls). The water belongs equally to us all. I think if boats refuse to sail together, we'll simply divide up our fleets until none of them are big enough to continue. Then there'll be no racing at all. Sailing is not a large enough sport (at least anywhere I've gone) to be exclusionary. Sincerely, Eric | | | Re: safe sailing
[Re: ThunderMuffin]
#208659 04/16/10 10:31 AM 04/16/10 10:31 AM |
Joined: Nov 2005 Posts: 807 Hillsborough, NC USA Isotope235
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Posts: 807 Hillsborough, NC USA | The only thing that leads me to doubt your conclusion of a safe crossing Eric is that the helm on A is hard over, pushing the boat to windward of B. His rudder looks straight on centerline to me. Since we all see different things in the picture, perhaps this is a good example of why photographic evidence is suspect in a protest. Regards, Eric | | | Re: safe sailing
[Re: Isotope235]
#208660 04/16/10 10:32 AM 04/16/10 10:32 AM |
Joined: Jan 2004 Posts: 1,884 Detroit, MI mbounds
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Posts: 1,884 Detroit, MI | However, downwind boat is in the middle of a jibe which would make him the GW boat. Not quite correct. There is a rule called "WHILE TACKING" (13), but not one called "WHILE GYBING". From the perspective of the rules, gybing occurs when your mainsail crosses the centerline of the boat and is considered pretty much an instantaneous event. The downwind boat shown appears to be changing course (see rule 16) but is still on starboard tack and is still the right-of-way boat. Regards, Eric I am aware of that - my statement was unclear as to the timing. To be perfectly clear, I should have said something to the effect that he would be the GW boat after completing the jibe. | | | Re: safe sailing
[Re: mbounds]
#208663 04/16/10 10:45 AM 04/16/10 10:45 AM |
Joined: Aug 2007 Posts: 3,969 brucat
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Posts: 3,969 | Wow...
I've attended too many seminars (rules, RC, judging), and the more times I attend, the more I learn: (1) How to learn and (2) How to use the rule book (not as a weapon, but a tool). In my experience, the definitions should actually be in the front of the book, they are so important.
Taking everything else aside for a minute, the most disturbing thing about this thread remains the number of posts where people are unsure of the rules, and are not willing to look them up (I alluded to this in an earlier post). If you're not willing to do it now (and clearly don't know the rules), how do you manage this in a race?
I have a great idea on how to fix this. We should have a rules quiz at every regatta (open book), including common situations such as those listed here (there haven't been any "tricky" situations given here), and rank the sailors based on their quiz score, and count that as Race #1. In a perfect world, everyone would be tied with a bullet before touching the water.
Mike | | | Re: safe sailing
[Re: brucat]
#208665 04/16/10 10:53 AM 04/16/10 10:53 AM |
Joined: Jun 2001 Posts: 3,906 Clermont, FL, USA David Ingram
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Posts: 3,906 Clermont, FL, USA | Wow...
I've attended too many seminars (rules, RC, judging), and the more times I attend, the more I learn: (1) How to learn and (2) How to use the rule book (not as a weapon, but a tool). In my experience, the definitions should actually be in the front of the book, they are so important.
Taking everything else aside for a minute, the most disturbing thing about this thread remains the number of posts where people are unsure of the rules, and are not willing to look them up (I alluded to this in an earlier post). If you're not willing to do it now (and clearly don't know the rules), how do you manage this in a race?
I have a great idea on how to fix this. We should have a rules quiz at every regatta (open book), including common situations such as those listed here (there haven't been any "tricky" situations given here), and rank the sailors based on their quiz score, and count that as Race #1. In a perfect world, everyone would be tied with a bullet before touching the water.
Mike Open book... I'm in.
David Ingram F18 USA 242 http://www.solarwind.solar"Do or do not. There is no try." - Yoda "Excuses are the tools of the weak and incompetent" - Two sista's I overheard in the hall "You don't have to be a brain surgeon to be a complete idiot, but it helps"
| | | Re: safe sailing
[Re: Timbo]
#208676 04/16/10 11:42 AM 04/16/10 11:42 AM |
Joined: Nov 2005 Posts: 807 Hillsborough, NC USA Isotope235
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Posts: 807 Hillsborough, NC USA | It must be nice to live in that perfect world where nothing ever goes wrong while sailing...ever. I don't recall anybody claming nothing ever goes wrong. I'm just saying that you are responsible for your own boathandling, not everybody else. This thread is about SAFETY while sailing, and the inference that with the advent of the modern spin. cat the rules might need to be looked at. And I'm saying that safety is everybody's responsibility, not just of boats going upwind. No matter what direction you are sailing, and no matter what sails you are using, you are expected to (1) watch where you are going, and (2) keep control of your boat. And we have a guy who's never even sailed a modern spin cat, let alone driven one downwind in 20 knots with boats coming upwind, calling us who do, Unsafe? Ok, let's take me out of the picture. Imagine the following scenerio: In this example, a boat sailing downwind under spinnaker (D) has right-of-way over a boat sailing upwind (U). Both are "modern spin cats" sailing one-design (or formula) in the same class on a closed course with no non-spin boats present. The wind is blowing 20kts. - Boat D has rounded the windward mark, set her chute, and is now sailing downwind on starboard tack "on the ragged edge of control".
- Boat U is still sailing upwind, on port tack, below the layline.
- The two boats approach each other at 25kts+ closure rate. If both boats maintain the course they are sailing, D will pass 2 boatlengths to windward of U.
- D doesn't see U behind her spinnaker. U sees D and loudly hails "Hold your course!" when they are 15 boatlengths apart.
- When the boats are 4 boatlengths apart, a gust hits and D bears away hard.
- U immediately steers away, but one second later, the boats collide. Both boats are destroyed. One of the sailors on Boat U is impaled on D's spinnaker pole.
Now I ask you, which boat was unsafe? Boat U, who kept a lookout, and acted to avoid contact when she was the give-way boat, or Boat D, who did not watch for other boats, and could not maintain her course in a puff when she was the right-of-way boat? I'm saying, it's going to happen [a collision] no matter how much you "protect" your escape lane, as if you can even do that when some upwind coming boat suddenly tacks into your escape lane...what's the plan now Olley? Douse the spin, get by him, then reset it??
I've never hit anyone either but I won't say I never will... If another boat is in your escape lane, and you turn down onto him in a puff, how is he supposed to avoid you? You are the one moving fast, and the one changing course in the gusts. Even if you have right-of-way, you aren't giving him room to keep clear. If that's your approach to sailing, then I have to agree - a collision is inevitable. Sincerely, Eric | | | Re: safe sailing
[Re: Isotope235]
#208679 04/16/10 11:52 AM 04/16/10 11:52 AM |
Joined: Aug 2007 Posts: 3,969 brucat
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Posts: 3,969 | Eric hits some important points here (others have also mentioned this).
Putting the non-spin boats into this discussion is ultimately a red herring. True, some of those sailors may not appreciate the exit strategy for a spin boat, but that does not really matter. A spin boat going upwind is going to have the same difficulty getting out of the the way of a boat that isn't in control.
In the interest of safety, perhaps we should have some discussion at mixed-class regattas to let everyone be aware of the "limitations" of spin boats (can't hurt). Of course, you are still obliged not to change course without giving the other boat the ability to keep clear. Which means, you're opening yourself up to a larger window in which an upwind boat can say in a hearing, "Hey, spin dude never saw me, so I needed to give him extra room in case he got hit by a puff. I started avoiding well before he could hear my hail, DSQ him now please."
Mike | | | Re: safe sailing
[Re: pgp]
#208680 04/16/10 11:59 AM 04/16/10 11:59 AM |
Joined: Nov 2005 Posts: 807 Hillsborough, NC USA Isotope235
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Posts: 807 Hillsborough, NC USA | I was almost run down by a spin boat and had to scramble to prevent the collision. The offender was an internationally known sailor. Good for you! You took action to avoid contact which was the right thing to do. Did you protest? You guys just don't get it. The game has changed; for the most part you guys are sailing twenty year old technology. The rules need to keep pace with progress. I'm sailing a 40 year old design but I don't see how that's germaine. It's about safety, not about being "dead right". Absolutely. When boats meet, both must avoid contact if reasonably possible. There's already a rule for that, #14. When one or both of the boats fail to do so, how will changing other rules correct that? What is the purpose of reassigning right-of-way other than to be "dead right"? Regards, Eric | | | Re: safe sailing
[Re: brucat]
#208684 04/16/10 12:15 PM 04/16/10 12:15 PM |
Joined: Nov 2005 Posts: 807 Hillsborough, NC USA Isotope235
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Posts: 807 Hillsborough, NC USA | I've attended too many seminars (rules, RC, judging), and the more times I attend, the more I learn: Absolutely. I learn new things about the rules all the time. In my experience, the definitions should actually be in the front of the book, they are so important. I agree with you there too. I have a great idea on how to fix this. We should have a rules quiz at every regatta (open book), including common situations such as those listed here (there haven't been any "tricky" situations given here) I've participated in, and run a few "barstool regattas" like this. It's usually more fun in teams. Each team gets a toy boat. There are a series of rules qestions and each time a team gets one right, their boat advances. The team that makes it to the finish line first wins. Ties are good. Regards, Eric | | | Re: safe sailing
[Re: F-18 5150]
#208703 04/16/10 02:28 PM 04/16/10 02:28 PM |
Joined: Dec 2001 Posts: 5,590 Naples, FL waterbug_wpb
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Posts: 5,590 Naples, FL | with great power comes great responsibility
Spin boats have a greater demand on your abilities, so keep that in mind when operating it.
That photo looked ugly. Yes, the upwind boat has more options, and it's every sailor's duty to avoid a collision. They can do whatever they want and protest if they wish. Hitting the boat should not be an option to consider... No race that many of us sail in is worth that kind of damage/injury...
Jay
| | | Re: safe sailing
[Re: Robi]
#208712 04/16/10 03:37 PM 04/16/10 03:37 PM |
Joined: Jan 2009 Posts: 5,525 pgp OP
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Posts: 5,525 | GYC is an exception. It's a small fleet, I know most of the sailors.
Pete Pollard Blade 702
'When you have a lot of things to do, it's best to get your nap out of the way first.
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